Non belligerent refers to a state of being peaceful or neutral. Its antonyms, on the other hand, would indicate a more aggressive and confrontational disposition. Some of these antonyms include hostile, belligerent, aggressive, bellicose, combative, and pugnacious. These words are used to describe a person or a country that is bellicose, aggressive, or prone to making confrontations. Typically, when used in writing or speech, these antonyms vividly describe an unpleasant attitude or behavior. It is essential to be familiar with words' meanings and their antonyms to gain clarity and understanding in the context they are used in.